Daonella

Daonella is a genus of oyster-like saltwater clams, marine bivalve mollusks which lived in the middle to late Triassic period.^[1] They are related to the genera Aparimella and Halobia.^[2] Since they were ubiquitous in the Arctic, Tethys and Panthalassa seas, they are frequently used as index fossils in dating rocks to the Triassic period.^[3] However, the systematic classification of the Daonella is still an area of ongoing research.^[4]

Daonella Temporal range: Middle Triassic–Late Triassic PreꞒ Ꞓ O S D C P T J K Pg N
Fossil Daonella
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	Pteriida
Superfamily:	Pterioidea
Family:	†Posidoniidae
Genus:	†Daonella